Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP

Details Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP

2001-07-08

arxiv.org/abs/hep-ex/0107014v1

Phys.Lett.B517:67-74,2001

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/S0370-2693(01)00993-5

We report on a search for the first generation heavy neutrino that is an isosinglet under the standard SU(2)_L gauge group. The data collected with the L3 detector at center-of-mass energies between 130 GeV and 208 GeV are used.The decay channel N_e --> eW is investigated and no evidence is found for a heavy neutrino, N_e, in a mass range between 80 GeV and 205 GeV. Upper limits on the mixing parameter between the heavy and light neutrino are derived.

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